CN108031944A - A kind of fan-shaped fixture and method for reducing blade assembly welding deformation - Google Patents
A kind of fan-shaped fixture and method for reducing blade assembly welding deformation Download PDFInfo
- Publication number
- CN108031944A CN108031944A CN201711266544.2A CN201711266544A CN108031944A CN 108031944 A CN108031944 A CN 108031944A CN 201711266544 A CN201711266544 A CN 201711266544A CN 108031944 A CN108031944 A CN 108031944A
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- China
- Prior art keywords
- fan
- locating piece
- compact heap
- blade
- inframarginal
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of fan-shaped fixture and method for reducing blade assembly welding deformation of the present invention, the fixture include：Bottom plate, supramarginal plate locating piece and inframarginal locating piece are provided with bottom plate, positioning pin is provided with inframarginal locating piece, circumferential compact heap is inserted with supramarginal plate locating piece and inframarginal locating piece, circumferential compact heap one end is equipped with hook section, the first locking device is provided with circumferential compact heap, bottom plate upper end is provided with compact heap, the second locking device is provided with upper compact heap.After fixture using the present invention and method are welded, greatly reduce welding deformation influence, appropriate milled processed is carried out using the reference surface formed after welding, fan-shaped section component listrium position is set to be machined with good benchmark, deformation is not present after the processing of fan-shaped section component listrium, it ensure that assembling quality very well, the positional precision at runner position also meets matching requirements very well, and the qualification rate of component is greatly improved after welding.
Description
Technical field：
The present invention relates to blade assembly welding technology field, and in particular to a kind of sector for reducing blade assembly welding deformation
Fixture and method.
Background technology：
Original rectifier assembly welding, due to welding manner and prevents that the measure of deformation is unreasonable so that after welding
Component have impact on the guarantee of subsequent components accurate to dimension, bigger difficulty brought to assembling there are moderate finite deformation situation,
Also it have impact on engine performance performance.
Aero-engine straightener(stator) blades many at present are worked in the form of fan-shaped section modular construction, fan-shaped section group
Part is formed by multiple monomer blade Combination Weldings, and the runner position of each monomer blade has machined, fan-shaped section component
Need to complete the processing at assembling position on the outside of listrium after welding, to ensure that runner position has standard with assembling position on the outside of listrium
True position accuracy demand, makes component runner position by assembling position on the outside of listrium with that can reach design after engine assembly
It is required that position relationship.But since each monomer blade is during fan-shaped section component is welded as, there are larger deformation
Phenomenon so that the runner position of fan-shaped section component and the data of technological requirement have larger deviation, so that added after Combination Welding
Assembling position positional precision does not reach requirement on the outside of the listrium of work.Within a period of time, due to the welding procedure of fan-shaped section component
There are problem for method so that the benchmark outer round surface and end standard plane surface warpage formed after being welded by each monomer blade
Deform and reached more than 0.5mm, and the benchmark outer round surface of fan-shaped section component and end standard plane, it is both each monomer blade
The machining benchmark at assembling position, so big datum level become on the outside of the machining benchmark at runner position, and fan-shaped section component listrium
Shape necessarily makes runner position deviate with assembling position generation position.
For this reason, we study technique for welding, a kind of sector for reducing blade assembly welding deformation is proposed
Fixture and method, to solve the above problems.
The content of the invention：
The object of the present invention is to provide a kind of fan-shaped fixture and method for reducing blade assembly welding deformation, reduces welding and becomes
Shape influences, and monomer blade passage position is assembled position positional precision with fan-shaped section component listrium and is obtained and well ensures, ensure that
Engine performance requirement.
To achieve the above object, the present invention uses following technical scheme：
A kind of fan-shaped fixture for reducing blade assembly welding deformation provided by the invention, for clamping blade, the blade
It is made of supramarginal plate, inframarginal and its blade therebetween, the fixture includes：Bottom plate, on the bottom plate in the horizontal direction
It is provided with supramarginal plate locating piece and inframarginal locating piece, the end face of the supramarginal plate locating piece and inframarginal locating piece toward each other
It is sector, fan-shaped cavity is formed between the supramarginal plate locating piece and inframarginal locating piece, the blade is installed in described
In fan-shaped cavity, step is provided with the sector of the supramarginal plate locating piece, the supramarginal plate lower part, which is sat, is arranged on described
On rank, and the supramarginal plate outer wall is in contact with the sector of the supramarginal plate locating piece, and the inframarginal lower part is sat and is arranged on institute
State on inframarginal locating piece, positioning pin, the inframarginal outer wall and the positioning pin phase are provided with the inframarginal locating piece
Contacting, circumferential compact heap is inserted with the supramarginal plate locating piece and inframarginal locating piece, the circumferential direction compact heap is strip board,
And it stretches into one end of the fan-shaped cavity and is equipped with hook section, the supramarginal plate lower part is held on the supramarginal plate locating piece and institute
Between the hook section for stating circumferential compact heap, the inframarginal lower part is held on the hook of the positioning pin and the circumferential compact heap
Between portion, the first locking device is provided with the circumferential direction compact heap, by all described in the first locking device positioning and locking
To compact heap, the bottom plate upper end is provided with compact heap, and the upper compact heap lower face connects with the upper surface of the blade
Touch, the second locking device is provided with the upper compact heap, pass through upper compact heap described in the second locking device positioning and locking.
The supramarginal plate locating piece and inframarginal locating piece are arcuate structure.
The bottom plate is fan-shaped bottom plate.
The upper compact heap is towards offering multiple grooves on the end face of the blade, and described in the groove location corresponds to
The weld bond position of blade.
First locking device is included in the square three-way groove vertically opened up on the circumferential compact heap, the side
Wedge block is fitted with shape straight slot, wedges the wedge block locking circumferential compact heap.
Second locking device is included in the pin vertically opened up with one heart on the upper compact heap and the base
Hole, is inserted with straight pin in the pin hole, and the straight pin extends to the outside of the upper compact heap, and on the upper compact heap
Square three-way groove is opened up on the straight pin in portion in the horizontal direction, wedge block is fitted with the square three-way groove, wedges the wedge block
Lock the upper compact heap.
Annulus is arranged with the positioning pin, the outer wall of the annulus is in contact with the inframarginal outer wall, and described
Through hole is opened up on the positioning pin on annulus top in the horizontal direction, plugs pin in the through hole, the pin to the annulus into
Row locking.
The method for carrying out blade assembly welding using a kind of above-mentioned fan-shaped fixture for reducing blade assembly welding deformation, it has
Body step is as follows：
Step 1：Multiple monomer blades are connected as fan-shaped black box；
Step 2：The fan-shaped black box is installed to the fixture, by the supramarginal plate locating piece and described
Inframarginal locating piece is positioned, then by the upper compact heap and the circumferential compact heap in the horizontal direction with vertical direction
Each monomer blade is compressed；
Step 3：The fan-shaped fixture of clamping blade is put into vacuum brazing furnace and carries out Welding.
It is that the welding surface of each monomer blade is first first put into solder piece of burn-oning in the step 1, then utilizes assembling
Each monomer blade is carried out arrangement positioning by fixture, recycles positioning welding mode that each monomer blade is connected as overall group
Part.
In the step 3, multiple clamping fan-shaped fixtures are arranged as annular shape, are put into the true of annular cavity
In empty soldering oven.
In the step 3, whole Welding process, the sector fixture keeps flat shape in the vacuum brazing furnace
State.
A kind of beneficial effect for the fan-shaped fixture and method for reducing blade assembly welding deformation of the present invention：It is using the present invention
After fixture and method are welded, the fan-shaped section member perimeter surface profile jerk value that is made of each blade listrium outer round surface
With datum end face flatness no more than 0.1mm, welding deformation influence is greatly reduced, utilizes the reference surface formed after welding
Appropriate milled processed is carried out, fan-shaped section component listrium position has been machined with good benchmark, the processing of fan-shaped section component listrium
Deformation is not present afterwards, ensure that assembling quality very well, the positional precision at runner position also meets matching requirements very well, weldering
The qualification rate for connecing rear component is greatly improved, and the similar structures rectifier assembly of other new work engines and gas turbine adds
Work can also use the technology, therefore the fixture of the present invention and method have larger application prospect.
Brief description of the drawings：
Fig. 1 is a kind of structure diagram for the fan-shaped fixture for reducing blade assembly welding deformation of the present invention.
Fig. 2 is the schematic cross-section in A-A faces in Fig. 1；
In figure：1- supramarginal plates, 2- inframarginals, 3- blades, 4- bottom plates, 5- supramarginal plate locating pieces, 6- inframarginal locating pieces, 7-
Step, 8- positioning pins, 9- circumferential direction compact heaps, 10- hook sections, the upper compact heaps of 11-, 12- wedge blocks, 13- straight pins, 14- annulus,
15- through holes, 16- handles.
Embodiment：
With reference to embodiment, the present invention is described in further detail.
According to Fig. 1~Fig. 2, a kind of fan-shaped fixture for reducing blade assembly welding deformation provided by the invention, is used for
Clamping blade, the blade are made of supramarginal plate 1, inframarginal 2 and its blade 3 therebetween, and the fixture includes：Bottom plate 4,
The bottom plate 4 is fan-shaped bottom plate, and the side of the bottom plate 4 is additionally provided with handle 16, convenient to be picked and placeed to fixture, the bottom plate 4
It is above horizontally disposed to have supramarginal plate locating piece 5 and inframarginal locating piece 6, supramarginal plate locating piece 5 and the inframarginal positioning
Block 6 is arcuate structure, and the supramarginal plate locating piece 5 and the end face of inframarginal locating piece 6 toward each other are sector, institute
To state and fan-shaped cavity is formed between supramarginal plate locating piece 5 and inframarginal locating piece 6, the blade is installed in the fan-shaped cavity,
Step 7 is provided with the sector of the supramarginal plate locating piece 5,1 lower part of supramarginal plate, which is sat, to be arranged on the step 7, and
1 outer wall of supramarginal plate is in contact with the sector of the supramarginal plate locating piece 5,2 lower part of inframarginal sit be arranged on it is described under
On listrium locating piece 6, positioning pin 8,2 outer wall of inframarginal and 8 phase of positioning pin are provided with the inframarginal locating piece 6
Contact, circumferential compact heap 9 is inserted with the supramarginal plate locating piece 5 and inframarginal locating piece 6, the circumferential direction compact heap 9 is bar
Shape plate, and it stretches into one end of the fan-shaped cavity and is equipped with hook section 10,1 lower part of supramarginal plate is held on the supramarginal plate and determines
Between the hook section 10 of position block 5 and the circumferential compact heap 9,2 lower part of inframarginal is held on the positioning pin 8 and the week
To between the hook section 10 of compact heap 9, the first locking device is provided with the circumferential direction compact heap 9, is locked by described first
Circumferential compact heap 9 described in device positioning and locking, 4 upper end of bottom plate is provided with compact heap 11, upper 11 lower end of compact heap
Face is in contact with the upper surface of the blade, and compact heap 11 is multiple recessed towards offering on the end face of the blade on described
Groove, and the groove location corresponds to the weld bond position of the blade, and the second locking device is provided with the upper compact heap 11, leads to
Cross upper compact heap 11 described in the second locking device positioning and locking.
Further, first locking device be included in vertically opened up on the circumferential compact heap it is square logical
Groove, is fitted with wedge block 12 in the square three-way groove, wedges the wedge block 12 and locks the circumferential compact heap 9.
Further, second locking device is included on the upper compact heap 11 and the base 4 vertically
The pin hole opened up with one heart, straight pin 13 is inserted with the pin hole, and the straight pin 13 extends to the outer of the upper compact heap 11
Portion, and square three-way groove is opened up in the horizontal direction on the straight pin 13 on 11 top of upper compact heap, inserted in the square three-way groove
There is wedge block 12, wedge the wedge block 12 and lock the upper compact heap 11.
Further, annulus 14, outer wall and the lower edge of the annulus 14 can also be arranged with the positioning pin 8
2 outer wall of plate is in contact, and opens up through hole 15 in the horizontal direction on the positioning pin 8 on 14 top of annulus, is inserted in the through hole
If pin, the pin locks the annulus 14.
The method for carrying out blade assembly welding using a kind of above-mentioned fan-shaped fixture for reducing blade assembly welding deformation, it has
Body step is as follows：
Step 1：Multiple monomer blades are connected as fan-shaped black box, can be first by the to be welded of each monomer blade
Solder piece of burn-oning first is put on surface, prepares double connection sheet according to weld seam quantity, then using assembling jig by each monomer leaf
Piece carries out arrangement positioning, and individual blade is compressed, and the upper and lower listrium outer end face of each two blade uses a connection sheet respectively
It is overlapped on the overlap joint interface of two blades, the connection sheet of each blade and overlap joint carries out 4~6 points of spot-welded, in whole
After the completion of the connection sheet spot welding of contact interface, the compression to blade is unclamped, removes fan-shaped black box, utilizes above-mentioned positioning welding
Each monomer blade is connected as black box by mode, by the use of the combination of connection sheet and spot welding as between single monomer blade
Initial alignment welds, and welding stress is small, so as to eliminate the change having in traditional work technique using argon arc welding as tack welding
Shape situation, and positioned using traditional argon arc welding mode, welding stress is big, and the position relationship after being positioned between blade is easily subject to
Destroy, it is impossible to meet use demand well；
Step 2：The fan-shaped black box is installed to the fixture, by the supramarginal plate locating piece 5 and described
Inframarginal locating piece 6 is positioned, then in the horizontal direction and vertical square by the upper compact heap 11 and the circumferential compact heap 9
Each monomer blade is compressed upwards, the first, last and middle part blade of fan-shaped black box is first compressed, makes 1 outer end of supramarginal plate
Face is bonded with the fan-shaped cavity inner wall inside fixture, is then compressed the upper surface of fan-shaped black box, is made fan-shaped black box each
The lower face of a blade is bonded with supramarginal plate locating piece 5 and 6 surface of inframarginal locating piece, is welding fan-shaped black box
When be in impaction state all the time in a certain direction, prevent Free Transform caused by welding stress；
Step 3：The fan-shaped fixture of clamping blade is put into vacuum brazing furnace and carries out Welding, whole pricker
Welding process is welded, the sector fixture is to maintain laid-flat status in the vacuum brazing furnace, makes fan-shaped black box and fixture
Supramarginal plate locating piece 5 and the inframarginal locating piece 6 and upper compact heap 11 remain basis, it is compressed, and makees
For the preferred embodiment of the present embodiment, multiple clamping fan-shaped fixtures can be arranged as annular shape, be put into annular cavity
Vacuum brazing furnace in, and in each welding, be able to can also be carried out at the same time identical according to the furnace body size of vacuum brazing furnace
The welding of multiple parts of form；
After part welding cooling, the fan-shaped black box welded is compressed and is unclamped, fan-shaped overall group is removed from furniture
Part checks welding quality, if necessary to repair welding, is then needing the position of repair welding to smear cream solder, is continuing to be clamped on fixture being put into
Welded in vacuum brazing furnace.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Pipe is described in detail the present invention with reference to above-described embodiment, those of ordinary skills in the art should understand that：Still may be used
With the embodiment technical scheme is modified or replaced equivalently to the present invention, and repaiied without departing from any of spirit and scope of the invention
Change or equivalent substitution, it should all cover among present claims scope.
Claims (10)
1. a kind of fan-shaped fixture for reducing blade assembly welding deformation, for clamping blade, the blade is by supramarginal plate, inframarginal
And its blade composition therebetween, it is characterised in that：The fixture includes：Bottom plate, it is horizontally disposed on the bottom plate
There are supramarginal plate locating piece and inframarginal locating piece, the end face of supramarginal plate locating piece and inframarginal locating piece toward each other is
Sector, forms fan-shaped cavity, the blade is installed in the sector between the supramarginal plate locating piece and inframarginal locating piece
In cavity, step is provided with the sector of the supramarginal plate locating piece, the supramarginal plate lower part, which is sat, to be arranged on the step,
And the supramarginal plate outer wall is in contact with the sector of the supramarginal plate locating piece, the inframarginal lower part is sat and is arranged on the lower edge
On plate locating piece, positioning pin is provided with the inframarginal locating piece, the inframarginal outer wall is in contact with the positioning pin, institute
State and circumferential compact heap is inserted with supramarginal plate locating piece and inframarginal locating piece, the circumferential direction compact heap is strip board, and it is stretched
The one end for entering the fan-shaped cavity is equipped with hook section, and the supramarginal plate lower part is held on the supramarginal plate locating piece and the circumferential direction
Between the hook section of compact heap, the inframarginal lower part be held on the positioning pin and the circumferential compact heap hook section it
Between, the first locking device is provided with the circumferential direction compact heap, by circumferentially being pressed described in the first locking device positioning and locking
Tight block, the bottom plate upper end are provided with compact heap, and the upper compact heap lower face is in contact with the upper surface of the blade, institute
State and the second locking device is provided with compact heap, pass through upper compact heap described in the second locking device positioning and locking.
A kind of 2. fan-shaped fixture for reducing blade assembly welding deformation according to claim 1, it is characterised in that：On described
Listrium locating piece and inframarginal locating piece are arcuate structure.
A kind of 3. fan-shaped fixture for reducing blade assembly welding deformation according to claim 1, it is characterised in that：The bottom
Plate is fan-shaped bottom plate.
A kind of 4. fan-shaped fixture for reducing blade assembly welding deformation according to claim 1, it is characterised in that：On described
Compact heap is towards offering multiple grooves on the end face of the blade, and the groove location corresponds to the weld bond position of the blade
Put.
A kind of 5. fan-shaped fixture for reducing blade assembly welding deformation according to claim 1, it is characterised in that：Described
One locking device is included in the square three-way groove vertically opened up on the circumferential compact heap, is fitted with the square three-way groove
Wedge block, wedges the wedge block locking circumferential compact heap.
A kind of 6. fan-shaped fixture for reducing blade assembly welding deformation according to claim 1, it is characterised in that：Described
Two locking devices are included in the pin hole vertically opened up with one heart on the upper compact heap and the base, are inserted in the pin hole
Equipped with straight pin, the straight pin extends to the outside of the upper compact heap, and edge on the straight pin on the upper compact heap top
Horizontal direction opens up square three-way groove, and wedge block is fitted with the square three-way groove, wedges the wedge block and locks the upper compression
Block.
A kind of 7. fan-shaped fixture for reducing blade assembly welding deformation according to claim 1, it is characterised in that：It is described fixed
Annulus is arranged with the pin of position, the outer wall of the annulus is in contact with the inframarginal outer wall, and in the positioning on the annulus top
Through hole is opened up on pin in the horizontal direction, pin is plugged in the through hole, the pin locks the annulus.
8. blade assembly welding is carried out using a kind of fan-shaped fixture of reduction blade assembly welding deformation described in claim 1
Method, it is characterised in that comprise the following steps that：
Step 1：Multiple monomer blades are connected as fan-shaped black box；
Step 2：The fan-shaped black box is installed to the fixture, passes through the supramarginal plate locating piece and the lower edge
Plate locating piece is positioned, then by the upper compact heap and the circumferential compact heap in the horizontal direction with vertical direction to each
A monomer blade is compressed；
Step 3：The fan-shaped fixture of clamping blade is put into vacuum brazing furnace and carries out Welding.
9. using the method described in claim 8, it is characterised in that：It is first to treat each monomer blade in the step 1
Solder piece of burn-oning first is put on weldering surface, and each monomer blade then is carried out arrangement positioning using assembling jig, recycles tack welding
Connect mode and each monomer blade is connected as black box.
10. using the method described in claim 8, it is characterised in that：In the step 3, by multiple clamping fan-shaped fixtures
Annular shape is arranged as, is put into the vacuum brazing furnace with annular cavity, and in whole Welding process, the sector fixture
Keep flat state in the vacuum brazing furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266544.2A CN108031944B (en) | 2017-12-05 | 2017-12-05 | Fan-shaped clamp and method for reducing welding deformation of blade assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266544.2A CN108031944B (en) | 2017-12-05 | 2017-12-05 | Fan-shaped clamp and method for reducing welding deformation of blade assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108031944A true CN108031944A (en) | 2018-05-15 |
| CN108031944B CN108031944B (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711266544.2A Active CN108031944B (en) | 2017-12-05 | 2017-12-05 | Fan-shaped clamp and method for reducing welding deformation of blade assembly |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128652A (en) * | 2018-10-15 | 2019-01-04 | 中国航发成都发动机有限公司 | A kind of fixture for static blade ring inner ring and blade welding |
| CN109531014A (en) * | 2018-12-05 | 2019-03-29 | 北京动力机械研究所 | A kind of sector aluminium alloy oil tank apparatus for welding and positioning |
| CN109759664A (en) * | 2019-03-12 | 2019-05-17 | 哈尔滨汽轮机厂有限责任公司 | The processing method of low pressure movable vane piece welding stellite alloy sheet defect elimination process |
| CN110948346A (en) * | 2019-11-11 | 2020-04-03 | 中国航发沈阳黎明航空发动机有限责任公司 | Grinding tool and method for machining flatness of step datum plane of rectifier |
| CN111702384A (en) * | 2020-06-02 | 2020-09-25 | 大连理工大学 | A assembly jig for fan-shaped subassembly automatic spot welding |
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| CN114346347A (en) * | 2022-03-04 | 2022-04-15 | 安徽机电职业技术学院 | Composite positioning device for high-temperature alloy brazing |
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| CN109128652A (en) * | 2018-10-15 | 2019-01-04 | 中国航发成都发动机有限公司 | A kind of fixture for static blade ring inner ring and blade welding |
| CN109531014A (en) * | 2018-12-05 | 2019-03-29 | 北京动力机械研究所 | A kind of sector aluminium alloy oil tank apparatus for welding and positioning |
| CN109759664A (en) * | 2019-03-12 | 2019-05-17 | 哈尔滨汽轮机厂有限责任公司 | The processing method of low pressure movable vane piece welding stellite alloy sheet defect elimination process |
| CN110948346A (en) * | 2019-11-11 | 2020-04-03 | 中国航发沈阳黎明航空发动机有限责任公司 | Grinding tool and method for machining flatness of step datum plane of rectifier |
| CN110948346B (en) * | 2019-11-11 | 2021-04-20 | 中国航发沈阳黎明航空发动机有限责任公司 | Grinding tool and method for machining flatness of step datum plane of rectifier |
| CN111702384A (en) * | 2020-06-02 | 2020-09-25 | 大连理工大学 | A assembly jig for fan-shaped subassembly automatic spot welding |
| CN111702384B (en) * | 2020-06-02 | 2021-05-07 | 大连理工大学 | A assembly jig for fan-shaped subassembly automatic spot welding |
| CN112975188A (en) * | 2021-03-18 | 2021-06-18 | 中国科学院工程热物理研究所 | Gas turbine compressor stator trigeminy blade welding set |
| CN114346347A (en) * | 2022-03-04 | 2022-04-15 | 安徽机电职业技术学院 | Composite positioning device for high-temperature alloy brazing |
| CN115008111A (en) * | 2022-08-09 | 2022-09-06 | 江苏阿莫斯燃气轮机有限公司 | Welding tool clamp for gas turbine blade assembly |
| CN115008111B (en) * | 2022-08-09 | 2022-10-21 | 江苏阿莫斯燃气轮机有限公司 | Gas turbine blade subassembly welding frock clamp |
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